Chapter 4

Question 1

A net resultant force acting on a object will…

Answer 1

make the object accelerate in the direction of the net force

Question 2

What is the equation linking

• Force
• Mass
• Acceleration

Answer 2

F = ma
Newtons = Mass x Acceleration

Question 3

What is 1 Newton of force

Answer 3

A force of 1 newton of force will give a 1kg mass an acceleration of 1m/s^2 in the direction of the force

Question 4

what is the Newton composed of

Answer 4

Kg m/s^2

Question 5

How do you calculate the weight

Answer 5

W =mg

Question 6

What is the centre of mass of an object

Answer 6

An imaginary point at which the entire weight of the object acts upon

Question 7

How to find the centre of gravity of a irregular and regular 2D object

Answer 7

1) Make a small holes along the edges of the object
2) Insert the pin through the hole and hold the pin firmly in a clamp stand
3) Allow the object to swing freely and come to rest
4) Hang a plumb line along with a vertical swing and draw a line the at which the line goes down
5) Repeat with different Holes along the exterior of the shape